VocBench is an open source web platform for the collaborative development of datasets complying with Semantic Web standards. Since its public release – five years ago – as an open source platform, VocBench has attracted a growing user community consisting of public organizations, companies and independent users looking for open source solutions for maintaining their thesauri, code lists and authority resources. The focus on collaboration, the differentiation of user roles and the workflow management for content validation and publication have been the strengths of the platform, especially for those organizations requiring a distributed, yet centrally controlled, publication environment. In 2017, a new, completely reengineered, version of the system has been released, broadening the scope of the platform: funded by the ISA2 programme of the European Commission, VocBench 3 offers a general-purpose collaborative environment for development of any kind of RDF dataset (with dedicated facilities for ontologies, thesauri and lexicons), improving the editing capabilities of its predecessor, while still maintaining the peculiar aspects that determined its success. In this article, we review the requirements and the new objectives set for version 3, and then introduce the new characteristics that were implemented for this new incarnation of the platform